Home / 5,207.40-7,185.37-2,969.28

Finding the Fourth Proportional to 5,207.40, 7,185.37 and 2,969.28

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Solution

The fourth proportional to 5,207.40, 7,185.37 and 2,969.28 is: 4,097.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.40 : 7,185.37 = 2,969.28 : x
  2. Step 2: Convert to fraction form
    5,207.40/7,185.37 = 2,969.28/x
  3. Step 3: Cross multiply
    5,207.40x = 7,185.37 × 2,969.28
  4. Step 4: Simplify right side
    5,207.40x = 21,335,375.43
  5. Step 5: Solve for x
    x = 21,335,375.43/5,207.40
  6. Step 6: Final answer
    x = 4,097.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.